Make prettyprinter useful in gdb.

src/prettyprinter.cc

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "src/prettyprinter.h"
 
 #include <stdarg.h>
 
 #include "src/ast-value-factory.h"
 #include "src/base/platform/platform.h"
@@ skipping 889 matching lines @@
 const char* PrettyPrinter::PrintProgram(FunctionLiteral* program) {
   Init();
   PrintStatements(program->body());
   Print("\n");
   return output_;
 }
 
 
 void PrettyPrinter::PrintOut(Isolate* isolate, Zone* zone, AstNode* node) {
   PrettyPrinter printer(isolate, zone);
-  PrintF("%s", printer.Print(node));
+  PrintF("%s\n", printer.Print(node));
 }
 
 
 void PrettyPrinter::Init() {
   if (size_ == 0) {
     DCHECK(output_ == NULL);
     const int initial_size = 256;
     output_ = NewArray<char>(initial_size);
     size_ = initial_size;
   }
@@ skipping 687 matching lines @@
 
 void AstPrinter::VisitSuperCallReference(SuperCallReference* node) {
   IndentedScope indent(this, "SUPER-CALL-REFERENCE");
 }
 
 
 #endif  // DEBUG
 
 }  // namespace internal
 }  // namespace v8